Combination telephone instrument.



Patented Apr, 8, I902. J. G. NOLEN. COMBINATION TELEPHONE INSTRUMENT.

(Applicatinn filed Aug. 7, 1901.)

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a a i i L w, T T w H C m: if E I gw No. 697,002. Patented Apr. 8, I902.

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COIEINATIUN TELEPHONE INSTRUMENT.

(Application filed Augfv, 1901. (No Model.)

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EW/e6. 1656 No. 697,002. Patented A rps, I902. J. a. nous".

EO'MBINATION TELEPHONE INSTRUMENT.

(Application filed Aug. 7; 1901. (No Model.) 3 Sheets-Sheet 3.

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Ihvirnn STATES A'rnNT JAMES G. NOLEN, OF CHICAGO, ILLINOIS.

COMBINATION TELEPHONE INSTRUMENT.

SPECIFICATIQIQ' forming part Of Letters Patent NO. 697,002, dated April8, 1902.

' Application filed August 7, 1901. Serial No- 7LZ13- N model- To aZZwhom it may concern.-

Be it known that I, JAMES G. NOLEN, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Combination Telephone Instruments; and I hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, which form part of thisspecification.

My invention relates to improvements in combination telephoneinstruments in which a call-bell generator, a bell-ringer, aninduction-coil or transformer, and the switch-hook are all combined andconstructed in one integral self-contained unit.

The object of my invention is to improve the quality of each of thedifferent instruments combined in the single unit by virtue of thisconstruction and to so combine the associated instruments composing atelephone set in one construction as to avoid the necessityof makingcomplicated electrical connections at the time when the instrument isplaced in service, all of the connecting binding-posts being placed inaccessible positions upon the insulated base upon which my instrument ismounted.

Another object of constructing the devices in the manner shown is torender all of the parts accessible for inspection and repairs.

Another object of my invention is to place the entire apparatus,consisting of the many assembled elements of a telephone set, as asingle unit in a box or case in which the batteries are also contained,the base of the instrument comprising the division of the said box orcase, providing thereby two compartments therein, one for containing thebatteries and the other the combination telephone instrument aforesaid.

With these and other objects in View, which will be obvious to thoseskilled in the art from the description hereinafter, myinventionconsists in the features, details of construction,

association, and combinations of elements,

which will first be described in connection with the accompanyingdrawings and then particularly pointed out in the claims.

In the drawings, Figure 1 is a plan view of my instrument mounted uponits base and removed from the case. Fig. 2 is a side elevation of thesame. Fig. 3 is a section through line 3 3 of Fig. 4. Fig. 4 is a sideelevation viewing the instrument from the opposite side of that shown inFig. 2. Fig. 5 is a diagram of connections, showing the various elementsor instruments in diagrammatic relation. Fig. 6 shows an elevation ofthe box or case containing the instruments in place and the batteriescontained in a lower compartment of the said case.

In all of the views the same numerals and letters indicate similarparts.

1, 2, 3, and 4 are permanent horseshoe-magnets.

5 and 6 are the housings which contain the bearings for the shaft andarmature.

7 and 8 are the pole-piece extensions between which the armature of thegenerator revolves. 9 and 10 are the screws which hold the saidpole-pieces in position with reference to the permanent magnets. 11 isthe magneto-generator armature, designed to be revolved between the saidpole pieces by means of the gearing 12 and 13.

14 is the shaft upon which the gear-wheel 13 is mounted. 15 is a handlewhich projects through the side of the case and which is used as a meansfor revolving the said shaft and armature.

16 is the connection by which current is imparted to one terminal of thearmature in the usual manner.

The automatic shuntbreaker or circuitopener for admitting the generatorinto the main circuit is not shown in these drawingsthat is, the usualshunt around the armature of the generator-the particularform of whichis not essential in my present invention.

A polarized alternating-current call-bell, magnets, and armature aremounted between the legs of the steel permanent magnets,above thegenerator field-poles thereof, in such a manner as to tend toshort-circuit the permanent field steel magnets l, 2, 3, and 4.

The call-bell ringer is of the ordinary type, having a polarizedarmature 17, the bellstriker 18 being attached thereto and passing outthrough the tines of the permanent magnet and extending through the doorof the casein which the instrument is contained into the proper positionfor striking the alarmbells contained on the outside of the door.

The armature 17 is provided at 18 on the frame of the bell. Thebell-magnet and armature are self-contained and are supported uponeither one of the poles of the permanent field-magnets by means of aclamp composed of two plates 19 and 20 and the screws 21.

I support my induction-coil 22 by means of angle-brackets 23 and 245,which are fixed to the outer permanent magnets 1 and 4, as shown in Fig.3, the induction-coil being located in the space above the call-bellringer. The call-bell ringer is bodily susceptible of a Verticaladjustment by means of the clamp composed of the bars 19 and 20. When itis lowered, it approaches the poles of the fieldmagnet and is morepositively influenced by the permanent field-magnets 1, 2, 3, and 4.When it is raised, it is less positively influenced by the said magnets,so that by this means it may be adjusted to meet the various conditions.

25 is a base of insulating material,preferablyofhardrubberorvulcanizedfiber. Upon this base all of thebinding-posts of the entire instrument and the hook 26 and itsconnections are mounted. The receiver-hook 26 is pivoted to a bracket 27at the point 28. The short end of the lever carries alaterally-extending pin 29, which is designed to have electrical contactwith the lower springs 30 and 31 when the hook end is up and the upperspring 32 when the receiver is on the hook.

The binding-posts R and R are'the terminals to which the two strands ofthe telephone-receiver cord are attached.

L and L are the line-terminals.

B and B are the battery-terminals.

T and T are the transmitter-terminals.

The secondary of the induction-coil is provided with terminals S and SThe primary of the induction-coil is provided with terminals P and P andthe terminals of the call-bell are 013 and CB By this arrangement any ofthe instruments contained in the associate combination may bedisconnected without disturbing the position or connections of any otherof the instruments in the combination.

The connections providing circuits for the various elements in mycombination instrument are shown in diagram, Fig. 6, are plain to thoseskilled in the art, and for this reason will not require furtherexplanation.

Having described my invention, what I claim as new and useful, anddesire to secure by Letters Patent of the United States, isp 1. Aself-contained, combination telephone instrument comprising a base, agenerator mounted on said base, a call-bell and induction-coil mountedon said generator, a switchhook mounted on said base, and terminalbinding-screws on said base for each element of said combination,substantially as set forth.

2. Aself-contained, combination telephone instrument, comprising a baseof insulating material, a current-generator mounted thereon, aswitch-hook mounted on an extension of said base, an i nduction-coilsupported between the magnets of said generator, a callbell ringersupported by said magnets between the poles thereof and saidinductioncoil and terminal binding-screws onsaid base for each elementof said combination, substantially as set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

JAMES G. NOLEN.

In presence of FOREE BAIN, M. RALLEN.

